Crystal Reports .NET Runtime SP29 - PNGs not scaling correctly anymore

Upgrading from SP28 to SP29, PNG image data with a DPI of 600 is not being scaled correctly any longer (image appears way too large on the report). The same image data scales fine on SP28. The same image saved as a JPG file works fine, too.

Is this a known issue of SP29 yet?

If needed, I can provide such PNG file. The specific one we have I cannot share due to privacy reasons.